Developed 30 years ago by Adobe, the Portable Document Format, or PDF, is widely used around the globe for viewing and signing documents – everything from corporate annual reports and scientific ...

Pay once and actually control your PDFs forever — edit, sign, and organize for $39.99. PDFs are great — until you need to change literally anything. Need to fix a typo? Add a signature? Swap an image?

People commonly share documents as PDFs. And why not? PDFs keep all the original formatting of the document intact — including layouts and fonts — so it’s viewed as originally intended. The downside?

It’s been more than 25 years that PDF files have been around, and they’re not going anywhere anytime soon. As PDFs are the most popular format for presentations and document sharing, they are heavily ...

These days, you don't need an app just to view PDF files. Every web browser can do that. If you sometimes create PDF files out of Office documents, you probably use Adobe's Acrobat Reader. After all, ...